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vivo X21 UD


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vivo X21 UD


OS: Android 8.1 (Oreo); Funtouch 4

CPU: Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Display: 6.28" inc
Camera: 12 MP, Dual

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vivo X21 UD smartphone runs on Android 8.1 (Oreo); Funtouch 4 operating system. The phone is powered by Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260) processor. It has 128 GB, 6 GB RAM. Internal storage options which can be extended with the help of microSD, up to 256 GB (uses SIM 2 slot). The smartphone has a Super AMOLED providing, Screen-to-Body Ratio of 85.2%. The smartphone is fueled with a 3200 mAh,  Non-removable Li-Ion. The main camera of the smartphone consists of a 12 MP, Dual. The sensors include Fingerprint (under display), accelerometer, proximity, compass. Connectivity features in the smartphone include Bluetooth, A-GPS, GLONASS, Wi-Fi, 3.5 mm Jack and more. The vivo X21 UD are available in various colors such as Black, Ruby Red. It measures 154.5 x 74.8 x 7.4 mm and weighs 156.2 g.

Hardware and OS vivo X21 UD
Operating system:Android 8.1 (Oreo); Funtouch 4
Processor:Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Chipset:Qualcomm SDM660 Snapdragon 660 (14 nm)
GPU:Adreno 512
Internal memory:128 GB, 6 GB RAM
External memory:microSD, up to 256 GB (uses SIM 2 slot)
Display vivo X21 UD
Type:Super AMOLED
Size:6.28" inc
Resolution:1080 x 2280 px
Touchscreen:capacitive touchscreen
Screen-to-Body Ratio:85.2%
Display area:98.4 cm2
Display aspect ratio:19:9 (height:width)
Pixel Density:402 PPI
Colors:16M
Connectivity vivo X21 UD
2G Network:GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 
3G Network:HSDPA 850 / 900 / 1900 / 2100
4G Network:LTE band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
Wi-Fi:Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot
Network:GSM / CDMA / HSPA / LTE
SIM card:Hybrid Dual SIM (Nano-SIM, dual stand-by)
Bluetooth:5.0, A2DP, LE
Edge:Yes
GPRS:Yes
GPS:Yes, with A-GPS, GLONASS
Speed:HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps
USB:microUSB 2.0, USB On-The-Go
Camera vivo X21 UD
Main camera:12 MP, Dual
Specs:12 MP, f/1.8, 1/2.55', 1.4µm, dual pixel PDAF
-5 MP, f/2.4, depth sensor
Features:LED flash, HDR, panorama
Video:1080p@30fps
Selfie camera:12 MP, Single
Specs:12 MP, f/2.0
Video:1080p@30fps
Multimedia vivo X21 UD
3.5 mm Jack:Yes
Radio:FM radio
Design vivo X21 UD
Colors:Black, Ruby Red
Body build:Front glass, aluminum body
Dimensions:154.5 x 74.8 x 7.4 mm
Weight:156.2 g
Battery vivo X21 UD
Battery capacity:3200 mAh,  Non-removable Li-Ion
Other vivo X21 UD
Release date:2018, March
Sensors:Fingerprint (under display), accelerometer, proximity, compass


vivo X21 UD Overview


The Vivo X21 UD is a sleek and stylish smartphone that offers a range of impressive features. Running on the Android 8.1 (Oreo) operating system with Funtouch 4, this device is powered by an octa-core Qualcomm Snapdragon 660 processor, providing smooth and efficient performance. The Adreno 512 GPU ensures excellent graphics quality, making it ideal for gaming and multimedia.

With 128GB of internal storage and 6GB of RAM, the Vivo X21 UD offers ample space for storing files, apps, and multimedia content. The microSD slot allows for expansion up to 256GB, giving users even more storage options. The 6.28-inch Super AMOLED display with a resolution of 1080 x 2280 pixels provides vibrant colors and sharp visuals, perfect for watching videos and playing games.

The dual 12MP + 5MP rear camera setup captures stunning photos with depth and clarity, while the 12MP front camera is perfect for taking selfies and video calls. The device also features a fingerprint sensor under the display for added security and convenience.

Pros:
- Impressive display quality with Super AMOLED technology
- Ample storage space and RAM for smooth performance
- Dual rear camera setup for high-quality photos
- Fingerprint sensor under the display for added security
- Stylish design with front glass and aluminum body construction

Cons:
- Lack of wireless charging capability
- Non-removable battery may limit flexibility for some users
- Limited availability of color options
- Hybrid SIM slot may not be ideal for users who require dual SIM and expandable storage simultaneously



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